import pgzrun

WIDTH = 800
HEIGHT = 400

colors = ['red', 'orange', 'yellow', 'green',
          'blue', 'cyan', 'purple', 'white']


def draw():
    #     screen.fill('white')
    #     screen.draw.filled_circle((400, 400), 400, 'red')
    #     screen.draw.filled_circle((400, 400), 370, 'orange')
    #     screen.draw.filled_circle((400, 400), 340, 'yellow')
    #     screen.draw.filled_circle((400, 400), 310, 'green')
    #     screen.draw.filled_circle((400, 400), 280, 'blue')
    #     screen.draw.filled_circle((400, 400), 250, 'cyan')
    #     screen.draw.filled_circle((400, 400), 220, 'purple')
    #     screen.draw.filled_circle((400, 400), 190, 'white')

    screen.fill('white')  
    for r in range(8):
        screen.draw.filled_circle((400, 400), 400-r*30, colors[r])

pgzrun.go()